Nondestructive Testing Technology for Quality Control and Acceptance of Flexible Pavement Construction

Test methods used for in-place quality control and acceptance of individual flexible pavement layers and of new and rehabilitated flexible pavement systems have changed little in past decades. Such quality control and acceptance operations typically rely on nuclear density measurements or the results of testing conducted on pavement cores. Roughness measurements are often used to confirm that the newly constructed pavement has an adequate initial smoothness. More recently, nondestructive testing (NDT) methods, including lasers, ground-penetrating radar, falling weight deflectometers, penetrometers, and infrared and seismic technologies, have been significantly improved and have shown potential for use in the quality control and acceptance of flexible pavement construction. Furthermore, the Mechanistic-Empirical Pavement Design Guide uses pavement layer stiffness as a key material property. This has led to increased measurement of layer moduli by owner agencies, an activity that heretofore was not a typical component in the acceptance of a completed project. This research investigated the application of existing NDT technologies for measuring the quality of flexible pavements. Promising NDT technologies were assessed on field projects for their ability to evaluate the quality of pavement layers during or immediately after placement or to accept the entire pavement at its completion. The results identified several NDT technologies ready and appropriate for implementation in routine, practical quality control and acceptance operations. The objectives of this research are to: (1) conduct a field evaluation of selected Nondestructive testing (NDT) technologies to determine their effectiveness and practicality for quality control and acceptance of flexible pavement construction; and (2) based on the field evaluation results, recommend appropriate test protocols. The first phase of the project will identify existing NDT technologies with potential for in-situ testing of flexible pavement layers, including Hot Mix Asphalt (HMA), base, and subgrade, during new construction and HMA overlays during rehabilitation, and of the entire flexible pavement system at its completion. In selecting NDT technologies for field evaluation in Phase II, emphasis will be placed on those judged ready and appropriate for implementation in flexible pavement construction.

Language

  • English

Project

  • Status: Completed
  • Funding: $699995.00
  • Contract Numbers:

    Project 10-65

  • Sponsor Organizations:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    American Association of State Highway and Transportation Officials (AASHTO)

    444 North Capitol Street, NW
    Washington, DC  United States  20001

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Project Managers:

    Harrigan, Edward

  • Performing Organizations:

    Applied Research Associates, Incorporated

    811 Spring Forest Road, Suite 100
    Raleigh, NC  United States  27609-9199
  • Principal Investigators:

    Von Quintus, Harold

  • Start Date: 20030822
  • Expected Completion Date: 0
  • Actual Completion Date: 20081031
  • Source Data: RiP Project 8554

Subject/Index Terms

Filing Info

  • Accession Number: 01463139
  • Record Type: Research project
  • Source Agency: National Cooperative Highway Research Program
  • Contract Numbers: Project 10-65
  • Files: RiP, USDOT
  • Created Date: Jan 3 2013 2:17PM